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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 20 May 2008 (Tuesday) 15:48
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Question...to upgrade or not

 
big_d
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Location: Ontario Canada
     
May 20, 2008 15:48 |  #1

Hey Guys currently i have a rebel xt and i want more crisp cleaner shots. Is better to go and buy a 40D OR keep with the 350D and buy some L glass?

Thanks
D


Canon 5D MK2/Canon 40D/Canon Rebel XT - Canon 16-35mm F2.8 L , Canon 24-105mm F4 L , Canon 70-200mm F2.8 L , Canon 50mm 1.8, Canon 18-55mm (Kit Lens), Sigma 70-300mm APO DG, Peleng 8mm Fish-eye, Canon 580 EX Speedlite II

  
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EcoRick
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May 20, 2008 16:33 |  #2

Not judging your talents, but the XT can take some pretty crisp shots. Perhaps you can post some pictures of what you'd like to improve.


Gear: Canon 1Ds MkII, 35L, 85L, 135L, 24-105L

  
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tonylong
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May 20, 2008 16:49 |  #3

big_d wrote in post #5562732 (external link)
Hey Guys currently i have a rebel xt and i want more crisp cleaner shots. Is better to go and buy a 40D OR keep with the 350D and buy some L glass?

Thanks
D

I'd consider starting with upgrading your kit lens, or at least learning about all of your lens's capabilities. Even the kit lens can deliver good shots if you use it within its "sweet spot" range. However, both the kit lens and the 50 1.8 will be soft when, say, wide open.

Try testing your various lenses, on a tripod with mirror lock and using the self timer, running them at various apertures from wide open to fully stopped down. You will likely find a range of apertures that will be noticeably sharper than the extremes, for example, from f/5.6 - f/11. You may also notice that a zoom lens might be softer at the extremes of their zoom range.

Also, this kind of test will help you learn how technique can affect sharpness. If, say, you are using a lens at f/8, it is likely in the zone of sharp, and so if you see problems with the shot, it is likely something in your focusing or shooting technique.

As a frame of reference, the 50 1.8 gets quite sharp at around f/2.8. If you take a shot with that lens and the tripod setup in the f/2.8 - f/8 range you will have a good reference point as to what is sharp and what is not. But that does require the tripod, mirror lockup, and either a cable release or the self timer to eliminate camera movement, and a good sized high-contrast subject to ensure good AF capture.

Good luck! The Rebel is capable of great shots!


Tony
Two Canon cameras (5DC, 30D), three Canon lenses (24-105, 100-400, 100mm macro)
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Pete-eos
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May 20, 2008 17:54 |  #4

Whats not so crisp about the current shots?

Upgrade to the 40D because of the features, you won't see an IQ improvement.




  
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nadtz
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May 20, 2008 17:55 |  #5

That said the XT could be annoying with its AF, my good lenses have performed 'better' since getting my 30d.




  
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big_d
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Jun 01, 2008 18:09 |  #6

Thanks for the suggestions guys i ended up buying some L glass as u can see in my sig and it's definitely an AF problem. when shooting cars it tends to grab the rear end of the car instead of the front end for ex

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Canon 5D MK2/Canon 40D/Canon Rebel XT - Canon 16-35mm F2.8 L , Canon 24-105mm F4 L , Canon 70-200mm F2.8 L , Canon 50mm 1.8, Canon 18-55mm (Kit Lens), Sigma 70-300mm APO DG, Peleng 8mm Fish-eye, Canon 580 EX Speedlite II

  
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Pete-eos
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Jun 01, 2008 19:42 |  #7

Huh, you've not mentioned an AF issue in the first post?

As for the camera focusing on the rear, what focus mode are you using, if your not using Ai-Servo and using One-Shot AF on moving vehicles (presuming they are moving) then this would explain the AF issue.

Good call on the 70-200 f/4L by the way.. :)




  
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big_d
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Jun 01, 2008 23:54 |  #8

^ya i forgot to mention it lol i was using oine shot and the cars were movin real slow lol

and thanks :)


Canon 5D MK2/Canon 40D/Canon Rebel XT - Canon 16-35mm F2.8 L , Canon 24-105mm F4 L , Canon 70-200mm F2.8 L , Canon 50mm 1.8, Canon 18-55mm (Kit Lens), Sigma 70-300mm APO DG, Peleng 8mm Fish-eye, Canon 580 EX Speedlite II

  
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Question...to upgrade or not
FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
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